aarch64: Add i.MX8 debug UART support

Signed-off-by: Sascha Hauer <[email protected]> [[email protected]: Added imx8_uart_setup_ll()] Signed-off-by: Andrey Smirnov <[email protected]> Signed-off-by: Sascha Hauer <[email protected]>
ndreys · Jun 11, 2018 · ee47ee9 · ee47ee9
1 parent aa6f3af
commit ee47ee9
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diff --git a/arch/arm/mach-imx/include/mach/debug_ll.h b/arch/arm/mach-imx/include/mach/debug_ll.h
@@ -15,6 +15,7 @@
 #include <mach/imx53-regs.h>
 #include <mach/imx6-regs.h>
 #include <mach/imx7-regs.h>
+#include <mach/imx8mq-regs.h>
 #include <mach/vf610-regs.h>
 
 #include <serial/imx-uart.h>
@@ -47,6 +48,8 @@
 #define IMX_DEBUG_SOC MX6
 #elif defined CONFIG_DEBUG_IMX7D_UART
 #define IMX_DEBUG_SOC MX7
+#elif defined CONFIG_DEBUG_IMX8MQ_UART
+#define IMX_DEBUG_SOC MX8MQ
 #elif defined CONFIG_DEBUG_VF610_UART
 #define IMX_DEBUG_SOC VF610
 #else
@@ -95,6 +98,13 @@ static inline void vf610_uart_setup_ll(void)
 	lpuart_setup(base, 66000000);
 }
 
+static inline void imx8_uart_setup_ll(void)
+{
+	void *base = IOMEM(IMX_UART_BASE(IMX_DEBUG_SOC,
+					 CONFIG_DEBUG_IMX_UART_PORT));
+	imx8mq_uart_setup(base);
+}
+
 static inline void PUTC_LL(int c)
 {
 	void __iomem *base = IOMEM(IMX_UART_BASE(IMX_DEBUG_SOC,
@@ -117,6 +127,7 @@ static inline void imx53_uart_setup_ll(void) {}
 static inline void imx6_uart_setup_ll(void)  {}
 static inline void imx7_uart_setup_ll(void)  {}
 static inline void vf610_uart_setup_ll(void) {}
+static inline void imx8_uart_setup_ll(void)  {}
 
 #endif /* CONFIG_DEBUG_LL */
 

diff --git a/common/Kconfig b/common/Kconfig
@@ -1099,6 +1099,13 @@ config DEBUG_IMX7D_UART
 	  Say Y here if you want barebox low-level debugging support
 	  on i.MX7D.
 
+config DEBUG_IMX8MQ_UART
+	bool "i.MX8MQ Debug UART"
+	depends on ARCH_IMX8MQ
+	help
+	  Say Y here if you want barebox low-level debugging support
+	  on i.MX8MQ.
+
 config DEBUG_VF610_UART
 	bool "VF610 Debug UART"
 	depends on ARCH_VF610
@@ -1163,6 +1170,7 @@ config DEBUG_IMX_UART_PORT
 						DEBUG_IMX6Q_UART || \
 						DEBUG_IMX6SL_UART || \
 						DEBUG_IMX7D_UART || \
+						DEBUG_IMX8MQ_UART || \
 						DEBUG_VF610_UART
 	default 1
 	depends on ARCH_IMX